Smitty UltraMesh Football Referee Shirt. The Smitty "Ultra Mesh" material is designed to have the crisp look of polyester, but the cool feel of mesh and polycotton. Tailored edge stitched soft byron collar - zip front. Matching banded sleeves. Double needle stitched left chest pocket and hem. Extra tuck-in length. Split tail bottom. One of the best shirts available. At this price you can't afford to go without one.